Backland Development
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Build a new home in your garden in Cowbridge

Building a second home behind your own in Cowbridge is a construction project with one unusual feature: you live beside the site from the first spade to the last coat of paint. That shapes how we plan it, from the fence that separates your garden on day one to where deliveries park.

The route covers everything between an idea and a finished house. We survey and design, prepare and submit the planning application, arrange Building Regulations approval and the structural warranty, organise new water, drainage and electricity connections, and then build. You keep ownership of the land throughout.

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Timber-frame house under construction with scaffolding at the bottom of a back garden, seen from the patio
Planning authority
Vale of Glamorgan Council
Postcodes
CF71
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
LDP
County
South Glamorgan

The local picture in Cowbridge

Access is where a garden plot anywhere in CF71 tends to succeed or fail. A new drive needs enough width for cars, clear visibility where it meets the road, and enough distance from neighbouring windows to keep noise and headlights in check.

Policies in the council’s Local Development Plan (LDP), along with any highways advice the council receives, decide the detail for your address. We measure the gap beside your house on the first visit, and if it’s too tight for a home that can be approved and built safely, we’ll tell you before any design fees are spent.

Section showing noon sun and shadows in Cowbridge: about 39 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 39°, shadow 6.3 m21 Dec, noon: sun 15°, shadow 18.5 mExistingNew home
This section is worked out for the latitude of Cowbridge: around 39° of sun at midday in late March and about 15° at midwinter. It shows why the gap between your house and a new home behind it is about light as well as privacy. Garden assumed to face north.

The next steps, locally

If your Cowbridge plot already has planning permission, we begin by checking the approved drawings and conditions against the site. Some permissions need detailed design, discharge of conditions or a minor amendment before they can be built. We then prepare the technical drawings, arrange Building Regulations approval and the warranty, apply for utility connections and give you a written quote to build.

  1. Free plot appraisal

    We check the title plan, access, constraints and planning policy from our desk, talk the plot through with you, and visit if it looks viable. There’s no cost and no obligation.

  2. Survey and design

    A measured survey records levels, boundaries, trees and neighbouring windows. We then design a layout and house that suit the plot, the street and your budget, and decide whether pre-application advice is worth seeking.

  3. Planning and approvals

    We submit the planning application and manage it to a decision, then deal with conditions, Building Regulations approval, the structural warranty, any build-over agreement and the new utility connections.

  4. Written quote and build

    Once design and survey are complete you get a written quote. The build runs in stages — access and groundworks, foundations, frame and roof, fit-out and external works — with inspections at each key point.

Worth checking early

  • Building and selling a new home can change your tax position compared with selling only your house; take advice from a tax adviser first.
  • A build next door means months of noise, deliveries and contractors near your home; good planning reduces the disruption but doesn’t remove it.
  • Planning can be refused, and money spent on surveys, design and the application isn’t recovered if it is — which is why we start with an appraisal.

Questions about garden plots in Cowbridge

Do new homes in Cowbridge need a structural warranty?

If the house will ever be sold or mortgaged, in practice yes. Mortgage lenders usually expect a 10-year structural warranty on a new home, though some accept an architect’s or surveyor’s certificate, and a warranty provider inspects the work at stages during the build, so it has to be in place before construction starts. Building control approval is separate and also required; a buyer’s solicitor will ask for both.

Will I pay Community Infrastructure Levy on a new home in Cowbridge?

Only if Vale of Glamorgan Council has adopted a Community Infrastructure Levy charging schedule; not every council has. Where it applies, it can be charged on a new home of any size. A self-build exemption exists for people building a home to live in, but it must be claimed before work starts, so we check the position at design stage.

Can I build a house in my garden in Cowbridge and keep the land?

Yes. On our design and build route you remain the owner while we design the home, apply to Vale of Glamorgan Council for planning, deal with Building Regulations and build it. The finished house can be sold, let or kept for family. Whether your plot can take a house depends on access, space, neighbours and local policy, and the decision rests with the council.

How close can a new house be to my own in Cowbridge?

There’s no single national distance. Many councils use separation guides of around 21 metres between facing back windows and around 12 to 15 metres between a back window and a blank side wall, but the guidance used by Vale of Glamorgan Council decides. Window positions, ground levels, roof shape and screening all affect what is acceptable, which is why we survey before we design.

Other options in Cowbridge

Build in your garden near Cowbridge

Find out what your garden could become

Free garden plot appraisal. No cost, no obligation, and a straight answer if it won’t work.

Get my free appraisal 0800 088 6248